Select that combination of the parts A, B, C, D which can fit into each other to form a complete square.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → (B), (C) and (D) only
Note: The given answer is as per the official NTA Answer Key. However, the pieces as printed in the paper cannot form a perfect square, as explained below.
The answer given by NTA fits the pieces like this: (B) along the top with its tab in the top-left corner, (C) in the bottom-left and (D) in the bottom-right. This makes a perfect square only if (B) is drawn a little straighter:

With (B) as printed in the paper, its top and bottom edges are not parallel, so when its top lies along the top of the square, its bottom cannot lie along the bottom, and gaps are left:
